Except the parent commenter meant literally the minute, not later that day. Only the base 13" model was available to ship quickly, the rest were launched with a 4-5 week delay.
Production of the low-end model was fine though, uh? How convenient! This is exactly the same that happened with the 2012 redesign. I'm sure it's all a coincidence though. Uh-uh.
(btw: "I'm certain that's probably" says it all, really.)